DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Parametric Study of HEMP-Thruster Downscaling to μN Thrust Levels

Keller, Andreas and Köhler, Peter and Hey, Franz Georg and Berger, Marcel and Braxmaier, Claus and Feili, Davar and Weise, Dennis and Johann, Ulrich (2015) Parametric Study of HEMP-Thruster Downscaling to μN Thrust Levels. IEEE Transactions on Plasma Science, 43 (1), pp. 45-53. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TPS.2014.2321095. ISSN 0093-3813.

[img] PDF - Only accessible within DLR


Many on-going European Space Agency (ESA) science and earth observation missions are based on precision attitude control and formation flying. All these missions impose strong requirements on propulsion system which should provide low thrust, low noise, and high-precision thrust vectors in up to 16 directions. Also as most of these missions have a platform with limited solar cell arrays, the power consumption of the propulsion system should be as low as possible. The idea of using a small high-efficiency multistage plasma thruster (HEMPT) system for such missions is very attractive because of its relatively low complexity and low system mass. Thus, the ability of downscaling a HEMPT to the μN range is investigated experimentally. A measurement campaign studying systematically the influence of the geometrical dimensions of main thruster parameters on operation, beam profile, and ion acceleration is presented. Additionally the anode material was varied and showed relevance to ion acceleration distribution. The minimum achieved thrust was 50 μN at an anode voltage of 600 V, corresponding to a specific impulse of 230 s. Operation points with thrusts of 180 and 360 μN demonstrate a specific impulse of 610 and 860 s, respectively.

Item URL in elib:https://elib.dlr.de/103534/
Document Type:Article
Title:Parametric Study of HEMP-Thruster Downscaling to μN Thrust Levels
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Keller, AndreasAstrium GmbH, Claude-Dornierstra�e 1, 88090 Immenstaad, GermanyUNSPECIFIEDUNSPECIFIED
Köhler, PeterUniversität GießenUNSPECIFIEDUNSPECIFIED
Berger, MarcelAirbus Defence and SpaceUNSPECIFIEDUNSPECIFIED
Feili, DavarUniverisity of SouthamptonUNSPECIFIEDUNSPECIFIED
Weise, DennisAstrium GmbH–Satellites, 88039 Friedrichshafen, GermanyUNSPECIFIEDUNSPECIFIED
Johann, UlrichAstrium FriedrichshafenUNSPECIFIEDUNSPECIFIED
Date:January 2015
Journal or Publication Title:IEEE Transactions on Plasma Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 45-53
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Electric propulsion, high-efficiency multistage plasma thruster (HEMPT), plasma devices, plasma diagnostics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben GRACE Follow-On (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Hüls, Simone
Deposited On:31 Mar 2016 11:57
Last Modified:06 Sep 2019 15:21

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.